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etcdctl/ctlv3: add 'move-leader' command

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Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
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Gyu-Ho Lee
2017-06-23 13:05:12 -07:00
parent 581a83dfd9
commit 6e9b776fce
5 changed files with 122 additions and 1 deletions
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etcdctl/README.md
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@@ -805,6 +805,29 @@ Prints a line of JSON encoding the database hash, revision, total keys, and size
+----------+----------+------------+------------+
```
### MOVE-LEADER \<hexadecimal-transferee-id\>
MOVE-LEADER transfers leadership from the leader to another member in the cluster.
#### Example
```bash
# to choose transferee
transferee_id=$(./etcdctl \
--endpoints localhost:12379,localhost:22379,localhost:32379 \
endpoint status | grep -m 1 "false" | awk -F', ' '{print $2}')
echo ${transferee_id}
# c89feb932daef420
# endpoints should include leader node
./etcdctl --endpoints ${transferee_ep} move-leader ${transferee_id}
# Error: no leader endpoint given at [localhost:22379 localhost:32379]
# request to leader with target node ID
./etcdctl --endpoints ${leader_ep} move-leader ${transferee_id}
# Leadership transferred from 45ddc0e800e20b93 to c89feb932daef420
```
## Concurrency commands
### LOCK \<lockname\> [command arg1 arg2 ...]